Introduces students to the biodiversity, ecology, and evolution of life on Earth through exploration of the ever-changing nature of Earth’s ecosystems. Topics are chosen to help students understand major groups of plants and animals through the history of life; responses of individual organisms, populations, and species to changing environments; climate change in past, present and future; and human impacts on the biosphere. NOTE: This course is not equivalent to BIOL 1001/BIOL 1009 or BIOL 1012/BIOL 1019, and is restricted to students who have not received prior credit for BIOL 1001, BIOL 1009, BIOL 1012, or BIOL 1019.